<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="../react18/react.development.js"></script>
    <script src="../react18/react-dom.development.js"></script>
    <script src="../react18/babel.min.js"></script>
</head>
<body>
    <div id="app"></div>
    <script type="text/babel">
        function App(){
            const [count,setCount]=React.useState(0);
            const changeCount=()=>{
                setCount(y=>y+1)
            }
            return <div>
                <h1>App组件</h1>
            <button
              onClick={() => {
                console.log(1);
              }}
            >
              按钮
            </button>

            <button onClick={changeCount}>按钮</button>
            <p>count的值是:{count}</p>
                </div>
        }
        ReactDOM.createRoot(document.getElementById("app")).render(<App />);
    </script>
</body>
</html>